Vermittlungssystem.

摘要

A switching system for integratedly switching voice, data, image information and the like. The switching system comprises a plurality of front-end modules (201 to 208) each adapted to perform a switching processing in association with a subscriber line or a trunk line, and a single or a plurality of central modules (100; 1001, 1002) for interconnecting the plurality of front-end modules in star-type fashion and switching information prevailing between the front-end modules, in unit of block accommodating the information and a header added thereto to contain connection control information and in accordance with the contents of the header. The front-end modules are connected to the central module via inter-module highways (220 to 223; 230 to 233) each having frames occurring at a predetermined period and time slots contained in each frame to carry blocks.